Low-power-consumption underwater acoustic target detection system suitable for small platform

Abstract

The invention discloses a low-power-consumption underwater acoustic target detection system suitable for a small platform. The system is suitable for a small platform, has the characteristics of low power consumption and small size, and can realize long-term and large-scale ocean observation; target information can be provided for various unmanned underwater vehicles and the like, and a foundation is laid for networking cooperative detection of the unmanned underwater vehicles; meanwhile, the target detection function of narrow-band and wide-band sonar is realized, and the type of the target can be identified while the existence of the target and the orientation of the target are detected; and the system can work in a non-stationary time-varying noise environment, and adaptively calculates a detection threshold. According to the invention, hardware is realized by adopting a CPU and an FPGA of a multi-chip packaging technology; the adopted CPU is integrated with large-capacity storage, so that the complexity of a circuit system is reduced, and the size of an electronic system is reduced; the whole system is achieved through the low-power-consumption CPU and the FPGA, and compared with a detection system achieved through a traditional DSP chip, the whole power consumption is greatly reduced.

Description

technical field [0001] The invention belongs to the field of underwater target detection, in particular to a low-power underwater acoustic target detection system suitable for small platforms. Background technique [0002] Underwater target detection has a very wide range of applications in civil, national defense and security fields. Due to the large attenuation of electromagnetic waves in water, acoustic means are generally used to detect underwater targets. Traditional acoustic target detection equipment has large volume, high energy consumption and low intelligence. Under normal circumstances, traditional target detection systems are mounted on large platforms such as ships or warships. Acoustic signals are first collected through large aperture arrays, and then manually monitored and identified by operators. The operator first judges whether the target appears according to the received signal, then determines the target azimuth, and finally identifies the target accor...

AI Technical Summary

Problems solved by technology

[0004] Directly applying the traditional detection system to a small platform has disadvantages such as low autonomy of the detection method and high energy consumption

Low autonomy reduces the detection and target parameter estimation performance of small platforms, and excessive energy consumption will reduce the endurance time of small platforms

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